Tank commander and school head by day, street racer by night, Ren Shimada is a more reserved type of person. During battle he’s typically seen wearing a mask due to reasons of smoke, at night he takes off the mask to not be recognized by the students in ASU, he's mostly quiet but when he sees the chance he will make a joke or two. His humor is on the edge being dark or just out right questionable, although he does have a soft side in private, he likes to cuddle with someone when they're alone.